Image from Boulder Dam, MN 7/16/2020, 11:41 PM CDT

AstroHutech modified Canon EOS 6D, Canon EF 100mm f/2.8 lens, f/2.8, ISO1600, 60s, with tracking. This is a stack of 5 similar images (total of 300 seconds), processed with PixInsight (for stacking) and Adobe Camera RAW and Photoshop.